<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <link rel="stylesheet" href="popup.css">
</head>
<body>
  <div class="container">
    <h2>自动刷新设置</h2>
    <div class="input-group">
      <input type="number" id="interval" min="1" value="60">
      <select id="timeUnit">
        <option value="second">秒</option>
        <option value="minute">分钟</option>
      </select>
    </div>
    <div class="button-group">
      <button id="startBtn">开始刷新</button>
      <button id="stopBtn">停止刷新</button>
    </div>
    <div id="status"></div>
  </div>
  <script src="popup.js"></script>
</body>
</html>